Blue Digital Signature WP

Blue Digital Signature

The digital signature is a mechanism making it possible to guarantee the integrity of an electronic document and to authenticate its author, by analogy with the handwritten signature of a paper document.

For this, the following conditions must be met:

  • authentic: the identity of the signatory must be able to be traced with certainty;
  • forgery-proof: the signature cannot be forged. Someone cannot pass themselves off as another;
  • non-reusable: the signature is not reusable. It is part of the signed document and cannot be moved to another document;
  • unalterable: a signed document is unalterable. Once it is signed, it cannot be modified any more;
  • irrevocable: the person who signed cannot deny it.

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BLUE DIGITAL SIGNATURE

Page Title5

The digital signature is a mechanism making it possible to guarantee the integrity of an electronic document and to authenticate its author, by analogy with the handwritten signature of a paper document.

A digital signature mechanism must have the following properties:

It must allow the reader of a document to identify the person or body that has affixed his signature (identification property).
It must guarantee that the document has not been altered between the time the author signed it and the time the reader consults it (integrity property).

For this, the following conditions must be met :

  • authentic: the identity of the signatory must be able to be traced with certainty;
  • forgery-proof: the signature cannot be forged. Someone cannot pass themselves off as another;
  • non-reusable: the signature is not reusable. It is part of the signed document and cannot be moved to another document;
  • unalterable: a signed document is unalterable. Once it is signed, it cannot be modified any more;
  • irrevocable: the person who signed cannot deny it.

In practice, most of the existing digital signature procedures rely on asymmetric cryptography

Electronic Signature
BLUE SIGNATURE

European electronic signature meeting the highest global standard

Timestamping1
BLUE TIMESTAMPING

Record a computer date to represent a precise moment using an essential number

Timestamping Eidas
BLUE STAMP EIDAS SERVER

eIDAS qualified signature server stamp

CODESIGNING1
BLUE CODESIGNING

Sign, authenticate, check the source of your software for download